Harrow



(No Model.)

H. D. BABGOOK & DE VALO'IS ST. JOHN. HARROW M OMH% W T00 Y. J E Emm N 30 MMWMM YL N a H Patented Dec. 24, 1895.

WI TNEflflEp.

ANDREW ELEM? 7HM L|THQWASHINGTOM DE.

UNITED STATES PATENT OFFICE.

HENRY D. BABOOOK AND DE VALOIS ST. JOHN, OF LEONARDSVILLE, AS- SIGNORSTO THE STANDARD HARROW COMPANY, OF UTICA, NEW YORK.

HARROW.

SPECIFICATION formingpart of Letters Patent No. 551,883, dated December24, 1895.

Application filed December 6, 1894. $erial No. 531,071. (No model.)

To all whom it may concern:

Be it known that we, HENRY D; BABCOCK and DE VALOIS ST. JOHN, ofLeonardsville, in the county of Madison and State of New York, haveinvented certain new and useful Improvements in Harrows; and we dohereby declare that the following is afull, clear, and exact descriptionof the invention, which will enable others skilled in the art to whichit appertains to make and use the same, reference being had to theaccompanying drawings, and to the numerals of reference marked thereon,which form part of this specification.

Our invention relates to improvements in harrows.

In the drawings which accompany and form a part of this specificationand in which similar figures of reference refer to corresponding partsin the several views, Figure 1 shows a portion of a curved springharrow-tooth secured to a portion of a harrow-frame in connection withthe adjusting mechanism which constitutes the improvements. Fig. 2 showsa rear view of a portion of a tooth in connection with the sameadjusting mechanism.

' Fig. 3 shows details on the same plane as Fig.

1, partially in section. Fig. 4 shows the shoe and its mountings indetail. Figs. 5 and 6 show two clamping-holders. Fig. 7 shows theadjusting lever-arm. Fig. 8 shows the end of a connecting rocking shafton which the leverarm is secured.

Referring to the reference-figures, 1 indicates a harrow-frame bar, towhich is secured the curved spring-tooth 2 by a set-screw clamp 3. Onthe tooth 2 are secured the clampingpieces or shoe-hangers 4, heldthereto by bolts 5 and 6 and provided with grooves and shoulders 4 forreceiving and engaging the edges of the tooth. Between theclamping-pieces is placed the shoe-base 7, having hub or boss 7 oneither end, which are received in the openings 4 of the clamping-pieces,so as to permit a free rocking movement of the shoebase. The shoe-baseis also provided with a square opening '7 for the reception of a rockingshaft 8, by means of which two or more shoes located in substantiallythe same line on the harrow-frame may be connected and simultaneouslyoperated. On the shoe-base is secured the shoe 9, which is curved and islocated in the same plane as the tooth and in front of the working pointof the tooth. The shoe is held and operated by a lever-arm 10 secured onend of rocking bar 8 and thereby connected with the shoe or shoes. Tothe arm are attached a connecting-bar 11, which may connect with othershoes, and an adjusting and holding mechanism.

In operation the shoe or shoes of the harrow may be moved from theposition shown in full lines in Fig. 1 to that shown in dotted lines inthe same figure or any intermediate position, and running on the surfaceof the ground gage the depth of out of the tooth or elevate the frame soas to throw the tooth out of operation entirely. The shoe also acts as aguard for the tooth. The shoe 9 may be adjusted to the position shown indotted lines in Fig. 2 on the bar 8.

What we claim as new, and desire to secure by Letters Patent, is-

1. The combination in a harrow of a frame, a curved spring-tooth, a shoepivotally secured to the tooth, and adjusting and holding deviceattached to the shoe, substantially as set forth.

2. The combination in a harrow of a frame,

a curved spring-tooth secured to the frame, a shoe-holder secured to thetooth at a point removed from the frame, an adjustable shoe pivoted tothe shoe-holder, and means for adjusting and securing the shoe inadjusted position, substantially as set forth. 3. The combination in aharrow of a frame, a curved spring-tooth secured to the frame,shoe-hangers secured to the bows of the teeth, a rocking shaft in thehangers, a shoe on the shaft, and adjusting and holding mechanism,substantially as set forth.

In witness whereof we have affixed our sig natures in presence of twowitnesses.

HENRY D. BABCOOK. DE VALOIS ST. JOHN. WVitnesses: I

E. WILLARD J ONES, GEORGE C. CARTER.

